COMP Cams CL11-772-8 Details

Chevy 396-454ci Big Block 1965-96

*Note: In order to use these camshafts in 1965-66 396/427ci blocks, it is necessary to machine a 3/16'' wide x 7/64'' deep groove in the rear main journal of the cam to allow oil flow to the top of the engine.

** Note: Requires thrust button & wear plate.

Good in weekend warrior with 3000+ stall converter. Needs good intake and exhaust with low gears.

Operating Range:

3000-7000 RPM

Duration Advertised:

286° Intake / 292° Exhaust

Duration @ .050'' Lift:

248° Intake / 254° Exhaust

Valve Lift w/1.7 Rockers:

.653'' Intake / .660'' Exhaust

Valve Setting:

.016'' Intake / .018'' Exhaust

Lobe Separation Angle:

110°

Specifications:

Intake Valve Lift (in.)

0.653

Exhaust Valve Lift (in.)

0.66

Int. Duration @ .050 in. (Deg)

248

Exh. Duration @ .050 in. (Deg)

254

Int. Duration Advertised (Deg)

286

Exh. Duration Advertised (Deg)

292

RPM Range

3000-7000

Engine Make/Size

Chevy Big Block (396-502)

Lifter Type

Mechanical Roller

Usage

Street/Performance

Gaskets Included

No

Advertised Duration

286 int./292 exh.

Advertised Exhaust Duration

292

Advertised Intake Duration

286

Assembly Lubricant Included

No

Basic Operating RPM Range

3,000-7,000

Cam Style

Mechanical roller tappet

Computer-Controlled Compatible

No

Duration at 050 inch Lift

248 int./254 exh.

Exhaust Duration at 050 inch Lift

254

Exhaust Valve Lash (in.)

0.018

Exhaust Valve Lift with Factory Rocker Arm Ratio (

0.66

Grind Number

CB XR286 R-10

Intake Duration at 050 inch Lift

248

Intake Valve Lash (in.)

0.016

Intake Valve Lift with Factory Rocker Arm Ratio (i

0.653

Lifter Style

Mechanical roller

Lifters Included

Yes

Locks Included

No

Pushrods Included

No

Quantity

Sold as a kit

Retainers Included

No

Rocker Arms Included

No

Timing Chain and Gears Included

No

Valve Lift with Factory Rocker Arm Ratio

0.653 int./0.660 exh.

Valve Springs Included

No

Valve Springs Required

Yes

Valve Stem Seals Included

No

Lobe Separation (Deg)

110

Manufacturer's Part Number:

CL11-772-8

The Leading Edge of Valve Train Technology

Comp Cams Xtreme Energy series camshafts can be used in any street or street/strip application where both throttle response and top-end horsepower is desired. These cams are designed to take advantage of the latest improvements in valve train components and the newest developments in camshaft design. Their aggressive lobe design produces better throttle response and top end horsepower than other cams with the same duration @ .050'' lift, while delivering increased engine vacuum. We do not recommend the use of stock valve train components with these camshafts due to the aggressive lobe designs.